• Trace Colors D - Bioactive Elements


Trace element supplement that promotes the Purple/Blue colors in corals

Blend of 18 essential trace elements.

BIOACTIVE ELEMENTS Supplement is part of the complete range of complementary major, minor and trace element complexes which together provide the needs of corals.

These 18 elements (out of all the trace elements in NSW) participate in the metabolic processes inside a coral’s skeleton and soft tissue, one of them being the production of the purple/blue pigments in the soft tissue of corals.

For best results in displaying Red Sea’s Coral Colors D use in conjunction with Red Sea’s NO3: PO4– X.


Provides the 31 minor and trace elements necessary for coral vitality and color



Red Sea Coral Coloration Program – Spice up your colors.

Red Sea’s research has identified 31 minor and trace elements that in addition to the foundation elements are present in the skeleton and soft tissue of all corals.

The Red Sea Coral Coloration Program’s supplements family divides these elements into four groups : Trace – Colors A, B, C and D that are related by the biological functions they perform. They are also associated with the production of specific color pigments in the soft tissue of stony corals.

These pigments can only be produced if the specific elements required for the bio-chemical process are available in the correct concentration. All 31 elements are required by all stony corals irrespective of the actual color the coral displays.

Easy supplementing according to Calcium

Red Seas’ Coral Color supplements have been formulated such that the ratio of the elements in each supplement is the same as that found in the skeleton and soft tissue of corals.

Our research has identified a constant ratio between each of the elements in our Trace-Colors supplements and the overall consumption of calcium, which is proportional to coral growth and metabolic activity. This provides an easy and safe method of dosing all Trace Colors Supplements based on a measured calcium uptake.

Coral Colors A, B and C each contain a leading element (iodine, potassium and iron) that is accurately measurable with Red Sea’s unique Trace-Colors Pro Test Kits. For ultra low nutrient systems Trace Colors A, B and C should be dosed precisely according to the measured demand of the reef for these elements.


Aquarium TypeAverage daily usage per 100L(25gal)Test kit
Mixed Reef3ml0.3mlCALCIUM PRO
SPS Dominant4ml0.4mlCALCIUM PRO
Ultra Low nutrient SPS2ml0.2mlTRACE COLORS PRO


Coral Coloration Program video

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Trace Colors D - Bioactive Elements

  • Brand: Red Sea
  • Product Code: Trace Colors D - Bioactive Elements
  • Availability: In Stock
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  • Ex Tax: £16.66

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Tags: Red Sea, Trace Colors D, Bioactive Elements, Coral Color, Trace Color